package my.lotu.dao;

import java.util.List;
import org.hibernate.LockOptions;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import my.lotu.bean.Daymeal;

/**
 * A data access object (DAO) providing persistence and search support for
 * Daymeal entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see my.lotu.bean.Daymeal
 * @author MyEclipse Persistence Tools
 */
public class DaymealDAO extends BasicDao {
	private static final Logger log = LoggerFactory.getLogger(DaymealDAO.class);
	// property constants
	public static final String COST = "cost";
	public static final String CALORIE = "calorie";
	public static final String BREAKFAST = "breakfast";
	public static final String LUNCH = "lunch";
	public static final String DINNER = "dinner";

	private Session getSession() {
		return getSessionFactory().getCurrentSession();
	}
	public void save(Daymeal transientInstance) {
		log.debug("saving Daymeal instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Daymeal persistentInstance) {
		log.debug("deleting Daymeal instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Daymeal findById(java.lang.Integer id) {
		log.debug("getting Daymeal instance with id: " + id);
		try {
			Daymeal instance = (Daymeal) getSession().get("my.lotu.bean.Daymeal", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Daymeal instance) {
		log.debug("finding Daymeal instance by example");
		try {
			List results = getSession().createCriteria("my.lotu.bean.Daymeal").add(Example.create(instance)).list();
			log.debug("find by example successful, result size: " + results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Daymeal instance with property: " + propertyName + ", value: " + value);
		try {
			String queryString = "from Daymeal as model where model." + propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByCost(Object cost) {
		return findByProperty(COST, cost);
	}

	public List findByCalorie(Object calorie) {
		return findByProperty(CALORIE, calorie);
	}

	public List findByBreakfast(Object breakfast) {
		return findByProperty(BREAKFAST, breakfast);
	}

	public List findByLunch(Object lunch) {
		return findByProperty(LUNCH, lunch);
	}

	public List findByDinner(Object dinner) {
		return findByProperty(DINNER, dinner);
	}

	public List findAll() {
		log.debug("finding all Daymeal instances");
		try {
			String queryString = "from Daymeal";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Daymeal merge(Daymeal detachedInstance) {
		log.debug("merging Daymeal instance");
		try {
			Daymeal result = (Daymeal) getSession().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Daymeal instance) {
		log.debug("attaching dirty Daymeal instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Daymeal instance) {
		log.debug("attaching clean Daymeal instance");
		try {
			getSession().buildLockRequest(LockOptions.NONE).lock(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}